ML20042F759
| ML20042F759 | |
| Person / Time | |
|---|---|
| Site: | Sequoyah  |
| Issue date: | 05/04/1990 |
| From: | Michael Ray TENNESSEE VALLEY AUTHORITY |
| To: | NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM) |
| Shared Package | |
| ML20042F760 | List: |
| References | |
| TAC-74151, TAC-74152, NUDOCS 9005090356 | |
| Download: ML20042F759 (2) | |
Text
4 f. _-
TENNESSEE VALLEY AUTHORITY CH ATTANOOG A. TENNESSEE 37401 SN 1578 Lookout Place-MAY0t1990 4
o TVA-SQN-TS-90-13 10 CFR 50.90-U.S. Nuclear Regulatory Commiss. ion ATTN: Document Control Desk-Washington. D.C.
20555
-Gentlemen:
,In the Matter of
)-
Docket Nos. 50-327 Tennessee' Valley Authority
)
50-328 SEQUOYAH NUCLEAR PLANT (SQN) - TECHNICAL SPECIFICATION (TS) CHANGE 90 COLD-LEG ACCUMULATOR INSTRUMENTATION SURVEILLANCE
Reference:
NRC letter to TVA dated August 11, 1989, " Emergency Amendments for Inoperable Cold Leg Injection Accumulator Level Instrumentation (TAC 74151/74152) (TS 89-37) - Sequoyah Nuclear Plant, Units 1 and 2" In accordance with 10 CFR 50.90, we are enclosing a requested amendment to Liconses DPR-77 and DPR-79 to change the TSs of SQN~Unlts 1'and 2.
The proposed change deletes the required surveillance on'the cold-leg accumulator water level and pressure instruments.
This change is being requested to provide a permanent resolution to the issuance of a temporary change to the SQN 15 as documented in the reference. letter.
The proposed TS change is identified in Enclosure.1.
The justification for the proposed TS change is provided in Enclosure 2.
A proposed-determination of no significant hazards consideration performed pursuant to.10 CFR 50.92 is 1
provided in Enclosure 3.
As a separate issue, TVA is taking this opportunity to provide the NHC staff with an update on the replacement of the cold-leg accumulator level transmitters used at-SQN.
To ensure continued reliability.of the accumulator level transmitters, TVA is replacing the originally installed Barton Model 384
- i level transmitters with-the newer Barton Model 752 level transmitters.
Complete replacement of the transmitters is presently scheduled to be completed during each unit's Cycle 4 refueling outage as part of a planned upgrade.
0 09D k I(
9005090306 900504 PDR ADOCK 05000327 i
P PDC An Equal Opportunity Empioyerr
e
_q s '-
U.S. Nuclear Regulatory Commission
-MAY 041990 Please direct. questions concerning this-Issue to Bruce S.-Schofield at-(615) 843-6172.
Very truly yours, TENNESSEE VALLEY AUTHORITY 4 -
k/b a>},
>M.-J.
ay, Manager y
- )
Licensing Project. Management Sworn to'and subscribed before me this' @ day of /h; 1990:
a.,& b.
'\\
PTotary Public My Commission. Expires
///4[94 Enclosures cc: American Nuclear Insurers (Enclosures)
Attention:
Librarian 1
The Exchange, Suite 245 1
270 Farmington Avenue 1
Farmington, Connecticut 06032 j
i Ms. S. C. Black, Assistant Director (Enclosures)
M for Projects TVA Projects Division i
U.S. Nuclear Regulatory Commission
'l One White Flint, North
?
11555 Rockville Pike Rockville, Maryland '20852 Mr. Michael H. Mobley, Director j
Division of Radiologic il Health jl T.E.R.R.A. Building 150 9th Avento, N i
Nashville, Tennessee 37203 NRC Resident Inspector (Enclosures)
Sequoyah Nuclear Plant 2600 Igou Ferry. Road Soddy Daisy, Tennessee 37379 Mr. B. A. Wilson, Assistant Director (Enclosures) for Inspection' Programs TVA Projects Olvision U.S. Nuclear Regulatory Cowlssion j
Region II 101 Marietta Street, NH, Suite 2900 Atlanta, Georgia 30323